Craig Mayer, Nick WIlliams, Vojtech Huser
Lister Hill National Center for Biomedical Communications, National Library of Medicine, NIH, Bethesda, MD

See the full regCTG repository at https://github.com/lhncbc/CRI/tree/master/regCTG

To return to the list of conditions and links to their rpeorts go to https://lhncbc.github.io/CRI/regCTG/regCTG-condition_report_links.html

Study Counts

Type	Study_count
Total_Studies	3199
interventional	2684
Observational	472
Registry	43

Studies over Time

```

Interventional Trials

Intervention Type

intervention_type	Study_Count
Drug	1045
Radiation	193
Procedure	155
Behavioral	126
Other	124
Drug\|placebo	122
Device	119
Biological	102
Drug\|Radiation	79
Drug\|Other	63
Drug\|Procedure	63
Biological\|Drug	56
Diagnostic Test	38
Dietary Supplement	28
Dietary Supplement\|placebo	22
Other\|Procedure	18
Drug\|Procedure\|Radiation	16
Procedure\|Radiation	15
Behavioral\|Other	14
Device\|Drug	14
Device\|Procedure	14
Drug\|Other\|Procedure	14
Other\|Procedure\|Radiation	14
Other\|Radiation	14
Drug\|Other\|Radiation	13
Biological\|Drug\|Other	11
Dietary Supplement\|Drug	10
Biological\|Other	9
Biological\|placebo	9
Drug\|Other\|placebo	8
Biological\|Drug\|placebo	6
Device\|Other	6
Behavioral\|Drug	5
Behavioral\|Radiation	5
Biological\|Drug\|Procedure	5
Biological\|Procedure	5
Biological\|Radiation	5
Diagnostic Test\|Drug	5
Dietary Supplement\|Other	5
Drug\|placebo\|Radiation	5
Genetic	5
Biological\|Other\|Procedure	4
Device\|Radiation	4
Dietary Supplement\|Other\|Procedure	4
Behavioral\|Dietary Supplement\|Other	3
Behavioral\|Other\|Procedure	3
Biological\|Drug\|Radiation	3
Combination Product	3
Combination Product\|Drug	3
Dietary Supplement\|Drug\|placebo	3
Dietary Supplement\|Procedure	3
Drug\|Other\|placebo\|Procedure	3
Behavioral\|Drug\|Other\|placebo	2
Behavioral\|Procedure	2
Biological\|Device	2
Biological\|Device\|Other\|Procedure	2
Biological\|Drug\|Genetic\|Other	2
Biological\|Drug\|Other\|placebo	2
Biological\|Drug\|Other\|Procedure	2
Device\|Other\|Procedure	2
Dietary Supplement\|Drug\|Other\|placebo	2
Dietary Supplement\|Drug\|Radiation	2
Drug\|Genetic\|Other	2
Drug\|Other\|Procedure\|Radiation	2
Behavioral\|Device	1
Behavioral\|Device\|Other\|Procedure\|Radiation	1
Behavioral\|Dietary Supplement\|Drug\|Other\|Procedure	1
Behavioral\|Dietary Supplement\|Other\|placebo	1
Behavioral\|Dietary Supplement\|Other\|Procedure	1
Behavioral\|Dietary Supplement\|Procedure	1
Behavioral\|Genetic	1
Behavioral\|Genetic\|Other\|Procedure	1
Behavioral\|Other\|Procedure\|Radiation	1
Behavioral\|placebo	1
Biological\|Device\|Drug	1
Biological\|Device\|Drug\|Procedure	1
Biological\|Drug\|placebo\|Procedure	1
Biological\|Other\|placebo	1
Biological\|Other\|Radiation	1
Combination Product\|Procedure	1
Combination Product\|Radiation	1
Device\|Diagnostic Test\|Other	1
Device\|Diagnostic Test\|Other\|Procedure	1
Device\|Drug\|Other	1
Device\|Drug\|Procedure	1
Device\|Drug\|Radiation	1
Device\|Procedure\|Radiation	1
Diagnostic Test\|Drug\|Other\|Procedure	1
Diagnostic Test\|Other	1
Diagnostic Test\|Other\|placebo	1
Diagnostic Test\|Other\|Procedure	1
Diagnostic Test\|Radiation	1
Dietary Supplement\|Drug\|Other\|placebo\|Procedure	1
Dietary Supplement\|Drug\|Other\|Procedure	1
Dietary Supplement\|Drug\|Procedure	1
Dietary Supplement\|Other\|placebo\|Procedure	1
Dietary Supplement\|placebo\|Procedure	1
Dietary Supplement\|Radiation	1
Drug\|Genetic\|Other\|Procedure	1
Drug\|Genetic\|Procedure	1
Drug\|Genetic\|Radiation	1
Drug\|placebo\|Procedure	1
Genetic\|Other\|Procedure	1

Count of Studies by Intervention (normalized and mapped)

Interventions over Time

Weekly studies for each intervention

Studies by Country

Country	Study_Count
United States	1416
Canada	201
NA	90
France	81
United Kingdom	72
United States\|Canada	61
China	49
Denmark	41
Germany	40
Italy	28
Japan	28
Netherlands	28
Korea, Republic of	27
Finland	25
Australia	22
Sweden	17
Switzerland	17
Brazil	16
Norway	16
Belgium	15
Spain	14
United States\|United Kingdom	12
Israel	11
Hong Kong	7
United States\|Puerto Rico	7
Czechia	6
Russian Federation	5
Taiwan	5
Turkey	5
Austria	4
Belgium\|Netherlands	4
India	4
Ireland	4
Portugal	4
Singapore	4
Greece	3
Poland	3
South Africa	3
Australia\|New Zealand	2
Austria\|Germany	2
Belgium\|France	2
Canada\|United States	2
Czech Republic\|United Kingdom	2
Denmark\|Finland\|Norway\|Sweden	2
Germany\|Switzerland	2
Iran, Islamic Republic of	2
Moldova, Republic of	2
Saudi Arabia	2
Switzerland\|United Kingdom	2
United States\|Australia	2
United States\|Australia\|Belgium\|Canada\|Denmark\|France\|Germany\|Ireland\|Israel\|Italy\|Spain\|United Kingdom	2
United States\|Australia\|Canada	2
United States\|Canada\|Czech Republic\|Germany\|Hungary\|Mexico\|Netherlands\|Puerto Rico\|Romania\|Russian Federation\|Ukraine\|United Kingdom	2
United States\|Canada\|Puerto Rico	2
United States\|Canada\|Spain\|United Kingdom	2
United States\|Canada\|Switzerland	2
United States\|Finland	2
United States\|Mexico	2
United States\|Netherlands\|United Kingdom	2
United States\|South Africa	2
United States\|Spain	2
Argentina\|Australia\|Japan\|United States\|Belgium\|Canada\|Chile\|Denmark\|Finland\|France\|Germany\|Israel\|Italy\|Korea, Republic of\|Netherlands\|New Zealand\|Poland\|Romania\|Russian Federation\|Slovakia\|Spain\|Sweden\|Taiwan\|United Kingdom	1
Argentina\|Austria\|Belgium\|Brazil\|Czechia\|France\|Hungary\|Israel\|Italy\|Japan\|Latvia\|Lithuania\|Panama\|Peru\|Poland\|Russian Federation\|South Africa\|Spain\|Ukraine	1
Argentina\|United States\|Belgium\|Brazil\|Canada\|China\|Czechia\|France\|Germany\|Israel\|Korea, Republic of\|Malaysia\|Mexico\|Netherlands\|Poland\|Romania\|Russian Federation\|Spain\|Sweden\|Taiwan\|Turkey\|Ukraine\|United Kingdom	1
Australia\|Austria\|Belgium\|Bosnia and Herzegovina\|Bulgaria\|Canada\|Croatia\|Czech Republic\|Denmark\|Finland\|Hungary\|India\|Ireland\|Italy\|Kazakhstan\|Luxembourg\|Malaysia\|Mexico\|Philippines\|Poland\|Portugal\|Romania\|Serbia\|Singapore\|Slovakia\|Spain\|Sweden\|Taiwan\|United Kingdom	1
Australia\|Austria\|Belgium\|Czech Republic\|Germany\|Hungary\|Ireland\|Israel\|Italy\|Mexico\|Netherlands\|Poland\|Portugal\|South Africa\|Spain\|United Kingdom	1
Australia\|Belgium\|Canada\|Chile\|Czech Republic\|France\|Italy\|Mexico\|Netherlands\|Poland\|Portugal\|Spain\|United Kingdom	1
Australia\|Belgium\|Germany\|Italy\|Netherlands\|Norway\|Spain\|Switzerland	1
Australia\|Brazil\|China\|Korea, Republic of\|Kuwait\|Lebanon\|New Zealand\|Saudi Arabia\|Taiwan\|Thailand	1
Australia\|Canada\|France	1
Australia\|Georgia\|New Zealand	1
Australia\|Hong Kong\|Singapore	1
Australia\|United States\|Austria\|Belgium\|Canada\|France\|Germany\|Ireland\|Italy\|Netherlands\|Puerto Rico\|Spain\|Sweden\|United Kingdom	1
Australia\|United States\|Belgium\|Canada\|France\|Germany\|Greece\|Netherlands\|Spain\|Sweden\|United Kingdom	1
Austria\|Belgium\|Czechia\|France\|Germany\|Greece\|Iceland\|Ireland\|Italy\|Netherlands\|Norway\|Spain\|United Kingdom	1
Austria\|Belgium\|Czechia\|France\|Germany\|Greece\|Italy\|Netherlands\|Norway\|Poland\|Russian Federation\|Spain\|Sweden\|Switzerland\|Turkey\|United Kingdom	1
Austria\|Belgium\|Denmark\|France\|Israel\|Italy\|Netherlands\|Poland\|Portugal\|Spain\|United Kingdom	1
Austria\|France\|Netherlands\|United Kingdom	1
Austria\|Germany\|Switzerland	1
Belgium\|Brazil\|Romania\|Argentina\|Australia\|Bulgaria\|Canada\|Chile\|China\|Colombia\|Czechia\|Denmark\|Finland\|France\|Germany\|Hungary\|Israel\|Japan\|Korea, Republic of\|Malaysia\|Mexico\|Netherlands\|New Zealand\|Poland\|Portugal\|Russian Federation\|Slovakia\|South Africa\|Spain\|Sweden\|Turkey\|Ukraine\|United Kingdom	1
Belgium\|Canada\|Denmark\|France\|Ireland\|Italy\|Norway\|Poland\|Spain\|Switzerland\|United Kingdom	1
Belgium\|Cyprus\|Czech Republic\|France\|Ireland\|Italy\|Luxembourg\|Netherlands\|Poland\|Spain\|United Kingdom	1
Belgium\|Czech Republic\|Finland\|France\|Germany\|Hungary\|Italy\|Russian Federation\|Slovakia\|Spain	1
Belgium\|Czechia\|Denmark\|Germany	1
Belgium\|Czechia\|Germany\|Hungary\|Italy\|Poland\|Spain	1
Belgium\|Denmark\|Finland\|Italy\|Norway\|Portugal\|Sweden\|Turkey	1
Belgium\|Denmark\|France\|Germany\|Italy\|Spain\|Switzerland\|United Kingdom	1
Belgium\|Denmark\|France\|Italy\|Latvia\|Lithuania\|Netherlands\|Romania\|Spain\|United Kingdom	1
Belgium\|Denmark\|Italy\|Netherlands\|Poland\|Portugal\|Russian Federation\|Switzerland\|United Kingdom	1
Belgium\|Finland\|France\|Germany\|Italy\|Netherlands\|Spain\|Sweden\|Switzerland\|United Kingdom	1
Belgium\|Finland\|France\|Germany\|Montenegro\|Netherlands\|Romania\|Russian Federation\|Serbia\|United Kingdom	1
Belgium\|Finland\|Israel\|Netherlands\|Portugal\|Spain\|Switzerland\|Turkey	1
Belgium\|France\|Germany\|Israel\|Spain\|Switzerland	1
Belgium\|France\|Germany\|Italy\|Netherlands\|Spain	1
Belgium\|France\|Germany\|Spain\|United Kingdom	1
Belgium\|France\|Ireland\|Italy\|Romania\|Spain\|Switzerland	1
Belgium\|France\|Italy\|Portugal\|Spain\|Sweden\|Turkey	1
Belgium\|Germany	1
Belgium\|Germany\|Hungary\|Netherlands\|Poland\|Romania\|Russian Federation\|South Africa	1
Belgium\|Germany\|Hungary\|Netherlands\|Romania\|Russian Federation\|South Africa	1
Belgium\|Germany\|Hungary\|United Kingdom	1
Belgium\|Germany\|Switzerland	1
Belgium\|Israel\|Malta\|Netherlands\|Russian Federation\|Turkey\|United Kingdom	1
Belgium\|Italy\|Slovakia	1
Belgium\|Luxembourg	1
Belgium\|Spain	1
Belgium\|United States\|Argentina\|Australia\|Austria\|Brazil\|Canada\|Chile\|China\|Czechia\|France\|Germany\|Hong Kong\|Israel\|Italy\|Korea, Republic of\|Mexico\|New Zealand\|Poland\|Romania\|Russian Federation\|Singapore\|Spain\|Taiwan\|Turkey\|United Kingdom	1
Belgium\|United States\|Australia\|Austria\|Canada\|China\|Czechia\|Denmark\|France\|Germany\|Greece\|Hungary\|Italy\|Japan\|Korea, Republic of\|Poland\|Russian Federation\|Spain\|Switzerland\|Taiwan\|United Kingdom	1
Brazil\|Germany\|Hungary\|South Africa\|Sweden	1
Brazil\|United States\|Argentina\|Australia\|Austria\|Belgium\|Canada\|Chile\|Colombia\|Czech Republic\|Denmark\|France\|Germany\|Greece\|Hungary\|Ireland\|Israel\|Italy\|Mexico\|Netherlands\|Peru\|Poland\|Puerto Rico\|Romania\|Russian Federation\|Spain\|United Kingdom	1
Brazil\|United States\|Argentina\|Australia\|Austria\|Canada\|China\|Denmark\|France\|Germany\|Israel\|Italy\|Japan\|Korea, Republic of\|Netherlands\|Norway\|Spain\|Sweden\|Taiwan\|Turkey\|United Kingdom	1
Bulgaria\|France\|Latvia\|Poland\|Romania	1
Canada\|Belgium\|Czech Republic\|Denmark\|Finland\|France\|Germany\|Ireland\|Israel\|Italy\|Mexico\|Netherlands\|Norway\|Poland\|Russian Federation\|Spain\|Sweden\|Switzerland\|United Kingdom	1
Canada\|China\|Korea, Republic of\|United Kingdom	1
Canada\|Finland\|Lithuania	1
Canada\|France\|India\|Italy\|Malaysia\|Russian Federation	1
Canada\|France\|United Kingdom	1
Canada\|Georgia	1
Canada\|Israel\|Italy\|Singapore\|United Kingdom	1
Canada\|United Kingdom	1
Canada\|United States\|Argentina\|Australia\|Belgium\|Brazil\|France\|Germany\|Japan\|Korea, Republic of\|Mexico\|Netherlands\|Russian Federation\|South Africa\|Spain\|United Kingdom	1
Canada\|United States\|Australia\|Austria\|Belarus\|Belgium\|Brazil\|Bulgaria\|Chile\|Colombia\|Czech Republic\|Finland\|France\|Germany\|Greece\|Hong Kong\|Ireland\|Israel\|Italy\|Japan\|Latvia\|Lithuania\|Mexico\|Netherlands\|New Zealand\|Peru\|Poland\|Portugal\|Puerto Rico\|Romania\|Russian Federation\|Singapore\|Slovakia\|South Africa\|Spain\|Sweden\|Switzerland\|Taiwan\|Ukraine\|United Kingdom	1
Canada\|United States\|Australia\|Austria\|Brazil\|Denmark\|Finland\|France\|Italy\|Korea, Republic of\|Netherlands\|Poland\|Slovakia\|Spain\|Sweden\|Taiwan\|United Kingdom	1
China\|Czechia\|United States\|Australia\|Belgium\|Brazil\|Canada\|Chile\|France\|Germany\|Italy\|Japan\|Korea, Republic of\|Netherlands\|Slovakia\|Spain\|Turkey\|United Kingdom	1
China\|Hong Kong\|Korea, Republic of\|Taiwan	1
China\|Malaysia\|Russian Federation\|Thailand	1
China\|Russian Federation	1
Colombia\|United States\|Argentina\|Australia\|Belgium\|Brazil\|Bulgaria\|Canada\|Chile\|China\|Czech Republic\|Estonia\|France\|Germany\|Greece\|India\|Israel\|Italy\|Korea, Republic of\|Latvia\|Lebanon\|Lithuania\|Mexico\|Netherlands\|New Zealand\|Panama\|Peru\|Poland\|Romania\|Russian Federation\|Slovakia\|Spain\|Sweden\|Taiwan\|Turkey\|Ukraine\|United Kingdom	1
Croatia	1
Cuba	1
Cyprus	1
Czech Republic	1
Denmark\|Estonia\|Finland	1
Denmark\|Finland\|France	1
Denmark\|Finland\|Hungary\|Norway\|Romania\|Russian Federation\|Sweden	1
Denmark\|Finland\|Netherlands\|Sweden	1
Denmark\|Germany	1
Denmark\|United Kingdom	1
Denmark\|United States\|Argentina\|Australia\|Brazil\|Canada\|Chile\|Colombia\|Czech Republic\|France\|Germany\|Greece\|Hungary\|Italy\|Mexico\|Netherlands\|Norway\|Poland\|Puerto Rico\|Romania\|Spain\|Sweden\|Turkey\|United Kingdom	1
Egypt	1
Estonia\|Finland\|France\|Germany\|Netherlands\|Russian Federation\|Spain\|Sweden\|United Kingdom	1
Estonia\|Finland\|Latvia\|Sweden	1
Finland\|France\|Germany	1
Finland\|France\|Latvia\|United Kingdom	1
Finland\|France\|United Kingdom	1
Finland\|Germany\|Switzerland	1
Finland\|Hungary	1
Finland\|Ireland\|Sweden	1
Finland\|Norway\|Sweden\|United Kingdom	1
Finland\|Sweden	1
Finland\|United States\|Australia\|Belgium\|Canada\|Czechia\|Estonia\|France\|Greece\|Hungary\|Italy\|Netherlands\|Poland\|Spain	1
Finland\|United States\|Czech Republic\|Estonia\|France\|United Kingdom	1
France\|Germany\|Netherlands	1
France\|Germany\|Switzerland	1
France\|Guadeloupe	1
France\|Guadeloupe\|Martinique	1
France\|Italy\|Spain\|Switzerland	1
France\|Netherlands\|United Kingdom	1
Georgia\|Russian Federation	1
Germany\|Hungary\|United Kingdom	1
Germany\|Italy	1
Germany\|Poland	1
Germany\|United States\|Argentina\|Australia\|Brazil\|Canada\|China\|Czechia\|France\|Hungary\|Israel\|Japan\|Korea, Republic of\|Mexico\|Poland\|Romania\|Russian Federation\|Spain\|Sweden\|Turkey\|Ukraine\|United Kingdom	1
Germany\|United States\|Belgium\|Canada\|France\|Hungary\|Israel\|Italy\|Korea, Republic of\|Netherlands\|Spain\|United Kingdom	1
Greece\|Spain	1
Hong Kong\|Indonesia\|Malaysia\|Philippines\|Singapore\|Taiwan\|Thailand\|Vietnam	1
Hungary	1
Iceland	1
Ireland\|Netherlands\|Spain\|United States\|Australia\|Austria\|Belgium\|Canada\|France\|Germany\|Hungary\|United Kingdom	1
Ireland\|United Kingdom	1
Israel\|United States\|Argentina\|Belgium\|Croatia\|France\|Germany\|Hungary\|Italy\|Netherlands\|Peru\|Poland\|Russian Federation\|Spain\|United Kingdom	1
Italy\|Spain	1
Korea, Republic of\|Taiwan	1
Latvia	1
Lithuania	1
Malaysia	1
Mexico\|Panama\|Peru	1
Moldova, Republic of\|Spain	1
Netherlands\|United States\|Austria\|Belarus\|Belgium\|Bulgaria\|Croatia\|Czechia\|Denmark\|France\|Germany\|Hungary\|Italy\|Latvia\|Lithuania\|Poland\|Portugal\|Serbia\|Slovakia\|Spain\|Sweden\|United Kingdom	1
Nigeria	1
Norway\|Sweden	1
Pakistan	1
Peru\|United States\|Argentina\|Australia\|Belgium\|Brazil\|Canada\|Chile\|France\|Germany\|Hungary\|Korea, Republic of\|Netherlands\|Poland\|Romania\|Russian Federation\|South Africa\|Spain\|Taiwan\|Tunisia\|Turkey\|United Kingdom	1
Poland\|United States\|Australia\|Belgium\|Canada\|France\|Germany\|Netherlands\|Russian Federation\|Slovakia\|South Africa\|Spain	1
Slovenia\|United States\|Australia\|Austria\|Belgium\|Ireland\|New Zealand\|Spain\|United Kingdom	1
South Africa\|United Kingdom	1
South Africa\|United States\|Austria\|Belgium\|Germany\|India\|Netherlands\|Poland\|Russian Federation\|United Kingdom	1
Sweden\|Taiwan\|United States\|Australia\|Austria\|Belgium\|Canada\|Czechia\|Denmark\|Finland\|France\|Germany\|Hungary\|Israel\|Japan\|Korea, Republic of\|Netherlands\|New Zealand\|Norway\|Poland\|Romania\|Russian Federation\|Slovakia\|Spain\|United Kingdom	1
Sweden\|United Kingdom	1
Taiwan\|China\|Korea, Republic of\|Singapore	1
United States\|Argentina	1
United States\|Argentina\|Australia\|Austria\|Belarus\|Belgium\|Brazil\|Bulgaria\|Canada\|Chile\|Croatia\|Denmark\|Estonia\|Finland\|France\|Germany\|Greece\|Hungary\|Ireland\|Italy\|Japan\|Latvia\|Lithuania\|Mexico\|Netherlands\|New Zealand\|Norway\|Poland\|Portugal\|Puerto Rico\|Romania\|Russian Federation\|Slovakia\|Slovenia\|South Africa\|Spain\|Sweden\|Switzerland\|Tunisia\|Turkey\|Ukraine\|United Kingdom\|	1
United States\|Argentina\|Australia\|Austria\|Belarus\|Belgium\|Brazil\|Bulgaria\|Canada\|Colombia\|Czechia\|Estonia\|Finland\|France\|Germany\|Hungary\|Israel\|Italy\|Japan\|Korea, Republic of\|Latvia\|Lithuania\|Peru\|Poland\|Portugal\|Romania\|Russian Federation\|Serbia\|Slovakia\|South Africa\|Spain\|Sweden\|Taiwan\|Turkey\|Ukraine\|United Kingdom	1
United States\|Argentina\|Australia\|Austria\|Belgium\|Brazil\|Canada\|Chile\|China\|Denmark\|Finland\|France\|Germany\|Greece\|Hong Kong\|Italy\|Korea, Republic of\|Malaysia\|Netherlands\|New Zealand\|Poland\|Russian Federation\|Serbia\|Singapore\|Slovakia\|Spain\|Sweden\|Taiwan\|Thailand\|Turkey\|Ukraine\|United Kingdom	1
United States\|Argentina\|Australia\|Austria\|Belgium\|Brazil\|Canada\|China\|Czech Republic\|Denmark\|Finland\|France\|Germany\|Hong Kong\|Hungary\|India\|Italy\|Japan\|Korea, Republic of\|Mexico\|Netherlands\|Poland\|Portugal\|Russian Federation\|Serbia\|Singapore\|South Africa\|Sweden\|Switzerland\|Taiwan\|United Kingdom	1
United States\|Argentina\|Australia\|Austria\|Brazil\|Canada\|Chile\|Colombia\|France\|Germany\|Ireland\|Israel\|Italy\|Japan\|Korea, Republic of\|Netherlands\|New Zealand\|Poland\|Russian Federation\|Spain\|Taiwan\|United Kingdom	1
United States\|Argentina\|Australia\|Austria\|Brazil\|Canada\|Chile\|Colombia\|France\|Germany\|Ireland\|Israel\|Italy\|Japan\|Korea, Republic of\|Netherlands\|Russian Federation\|Spain\|Taiwan\|United Kingdom	1
United States\|Argentina\|Australia\|Austria\|Brazil\|Canada\|Chile\|France\|Germany\|Ireland\|Israel\|Italy\|Japan\|Korea, Republic of\|Netherlands\|New Zealand\|Russian Federation\|Spain\|Taiwan\|United Kingdom	1
United States\|Argentina\|Australia\|Belgium\|Brazil\|Bulgaria\|Canada\|China\|Czechia\|France\|Germany\|Hungary\|Israel\|Italy\|Korea, Republic of\|Malaysia\|Mexico\|Netherlands\|Poland\|Portugal\|Puerto Rico\|Russian Federation\|South Africa\|Spain\|Sweden\|Taiwan\|Turkey\|Ukraine\|United Kingdom	1
United States\|Argentina\|Australia\|Belgium\|Brazil\|Canada\|Chile\|Croatia\|Czech Republic\|Denmark\|Estonia\|France\|Germany\|Hong Kong\|Hungary\|Israel\|Italy\|Korea, Republic of\|Netherlands\|Poland\|Portugal\|Russian Federation\|Singapore\|South Africa\|Spain\|Sweden\|Switzerland\|Taiwan\|Turkey\|Ukraine\|United Kingdom	1
United States\|Argentina\|Australia\|Belgium\|Canada\|Chile\|Czechia\|Denmark\|Finland\|France\|Georgia\|Germany\|Israel\|Italy\|Korea, Republic of\|Moldova, Republic of\|New Zealand\|Poland\|Russian Federation\|Slovakia\|South Africa\|Spain\|Sweden\|United Kingdom	1
United States\|Argentina\|Australia\|Belgium\|Canada\|Chile\|Czechia\|Finland\|France\|Germany\|Hungary\|Israel\|Italy\|Korea, Republic of\|New Zealand\|Singapore\|Spain\|Sweden\|Taiwan\|United Kingdom	1
United States\|Argentina\|Australia\|Brazil\|Canada\|Chile\|Colombia\|France\|Germany\|Mexico\|Spain	1
United States\|Argentina\|Australia\|Brazil\|Canada\|China\|Czechia\|France\|Germany\|Israel\|Italy\|Japan\|Korea, Republic of\|Netherlands\|Poland\|Russian Federation\|Spain\|Taiwan\|United Kingdom	1
United States\|Argentina\|Australia\|Brazil\|Canada\|Czech Republic\|Finland\|France\|Germany\|Greece\|Hungary\|India\|Ireland\|Italy\|Korea, Republic of\|Mexico\|Norway\|Peru\|Poland\|Romania\|Russian Federation\|South Africa\|Spain\|Sweden\|United Kingdom	1
United States\|Argentina\|Australia\|Brazil\|Canada\|Czech Republic\|Finland\|France\|Germany\|Hungary\|India\|Italy\|Korea, Republic of\|Netherlands\|Peru\|Poland\|Portugal\|Romania\|Russian Federation\|Serbia\|South Africa\|Spain\|Sweden\|Switzerland\|Taiwan\|United Kingdom	1
United States\|Argentina\|Belgium\|Brazil\|Bulgaria\|Canada\|China\|France\|Germany\|Greece\|Hungary\|India\|Israel\|Italy\|Japan\|Korea, Republic of\|Malaysia\|Mexico\|Netherlands\|Peru\|Poland\|Portugal\|Romania\|Russian Federation\|Spain\|Switzerland\|Taiwan\|Thailand\|Turkey	1
United States\|Argentina\|Belgium\|Brazil\|Canada\|Chile\|Czech Republic\|Denmark\|Finland\|France\|Germany\|Hungary\|India\|Italy\|Korea, Republic of\|Mexico\|Netherlands\|Russian Federation\|Singapore\|Slovakia\|South Africa\|Spain\|Sweden\|Taiwan\|Turkey\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Brazil\|Canada\|China\|Costa Rica\|Denmark\|France\|Greece\|Hungary\|Ireland\|Israel\|Italy\|Japan\|Korea, Republic of\|Mexico\|Norway\|Poland\|Portugal\|Russian Federation\|Spain\|Taiwan\|Thailand\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Brazil\|Canada\|China\|Denmark\|Finland\|France\|Germany\|Italy\|Japan\|Korea, Republic of\|Netherlands\|New Zealand\|Poland\|Slovakia\|Spain\|Sweden\|Taiwan\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Brazil\|France\|Germany\|Hungary\|Italy\|Korea, Republic of\|Netherlands\|Poland\|Spain\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Canada\|Czechia\|Denmark\|France\|Germany\|Greece\|Hungary\|Israel\|Italy\|Mexico\|Netherlands\|Poland\|Russian Federation\|South Africa\|Spain\|Sweden\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Canada\|Denmark\|Finland\|France\|Germany\|Israel\|Italy\|Japan\|Korea, Republic of\|Lithuania\|Netherlands\|Poland\|Russian Federation\|Singapore\|Slovakia\|Spain\|Sweden\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Canada\|France\|Germany\|Greece\|Ireland\|Italy\|Netherlands\|New Zealand\|Poland\|South Africa\|Spain\|Sweden\|Switzerland\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Canada\|France\|Germany\|Greece\|Ireland\|Italy\|Netherlands\|New Zealand\|Poland\|South Africa\|Spain\|Sweden\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|France\|Netherlands	1
United States\|Australia\|Austria\|Brazil\|Canada\|France\|Germany\|India\|Israel\|Italy\|Mexico\|Netherlands\|Poland\|Russian Federation\|South Africa\|Turkey\|United Kingdom	1
United States\|Australia\|Austria\|Canada\|Denmark\|France\|Germany\|Italy\|Poland\|Spain	1
United States\|Australia\|Austria\|Chile\|Colombia\|Denmark\|France\|Israel\|Japan\|Korea, Republic of\|Poland\|Spain\|Switzerland\|Taiwan	1
United States\|Australia\|Belarus\|Brazil\|Canada\|China\|Czechia\|Denmark\|Finland\|France\|Germany\|Israel\|Italy\|Japan\|Mexico\|Peru\|Poland\|Portugal\|Romania\|Russian Federation\|Spain\|Sweden\|Taiwan\|Turkey\|Ukraine	1
United States\|Australia\|Belgium\|Brazil\|Bulgaria\|Canada\|China\|Czechia\|Finland\|France\|Germany\|Israel\|Italy\|Japan\|Korea, Republic of\|Mexico\|Netherlands\|Poland\|Russian Federation\|Spain\|Sweden\|Taiwan\|United Kingdom	1
United States\|Australia\|Belgium\|Brazil\|Canada\|Czech Republic\|France\|Germany\|Hong Kong\|Israel\|Italy\|Netherlands\|Norway\|Poland\|Singapore\|Slovakia\|Spain\|Sweden\|United Kingdom	1
United States\|Australia\|Belgium\|Brazil\|Canada\|Denmark\|France\|Israel\|Korea, Republic of\|Netherlands\|Russian Federation\|Spain\|Sweden\|Taiwan\|United Kingdom	1
United States\|Australia\|Belgium\|Brazil\|Canada\|Finland\|France\|Germany\|Israel\|Italy\|Japan\|Netherlands\|Norway\|Poland\|Russian Federation\|Singapore\|Spain\|Sweden\|United Kingdom	1
United States\|Australia\|Belgium\|Canada\|Denmark\|Estonia\|France\|Germany\|Iceland\|Israel\|Netherlands\|Poland\|Puerto Rico\|Russian Federation\|Spain\|United Kingdom	1
United States\|Australia\|Belgium\|Canada\|Denmark\|Finland\|France\|Indonesia\|Netherlands\|Norway\|Poland\|Sweden\|Switzerland\|United Kingdom	1
United States\|Australia\|Belgium\|Denmark\|Finland\|France\|Italy\|Slovakia\|Spain\|Sweden\|United Kingdom	1
United States\|Australia\|Belgium\|France\|Germany\|Italy\|Singapore\|Spain	1
United States\|Australia\|Belgium\|Germany\|Spain\|Sweden\|United Kingdom	1
United States\|Australia\|Brazil\|Canada\|Chile\|Czechia\|France\|Germany\|Israel\|Italy\|Korea, Republic of\|Spain\|Sweden\|Taiwan\|United Kingdom	1
United States\|Australia\|Bulgaria\|Canada\|Czechia\|France\|Greece\|Hungary\|India\|Latvia\|Mexico\|New Zealand\|Poland\|Russian Federation\|Slovakia\|Slovenia\|South Africa\|Ukraine	1
United States\|Australia\|Canada\|China\|Germany\|Ireland\|Netherlands\|United Kingdom	1
United States\|Australia\|Canada\|Czech Republic\|France\|Hungary\|Russian Federation\|United Kingdom	1
United States\|Australia\|Canada\|Ireland\|New Zealand\|United Kingdom	1
United States\|Australia\|Canada\|Spain\|United Kingdom	1
United States\|Australia\|Chile\|France\|Germany\|Italy\|Netherlands\|Spain\|United Kingdom	1
United States\|Australia\|Denmark\|Germany\|Korea, Republic of\|Netherlands\|Puerto Rico\|Romania\|Spain\|United Kingdom	1
United States\|Australia\|Italy	1
United States\|Australia\|Italy\|Korea, Republic of\|Spain	1
United States\|Australia\|Peru\|Puerto Rico	1
United States\|Australia\|Puerto Rico\|Spain	1
United States\|Austria	1
United States\|Austria\|Czech Republic\|Germany\|Hungary\|Italy\|Slovakia\|Spain\|United Kingdom	1
United States\|Austria\|Czechia\|Germany\|Lithuania\|Poland\|Slovakia\|Taiwan	1
United States\|Belgium\|Canada\|Czech Republic\|Finland\|Germany\|Hungary\|Mexico\|Netherlands\|Poland\|Romania\|Russian Federation\|Ukraine\|United Kingdom	1
United States\|Belgium\|Canada\|Czechia\|France\|Italy\|Netherlands\|Poland\|Russian Federation\|Spain\|United Kingdom	1
United States\|Belgium\|Canada\|Denmark\|France\|Germany\|Romania\|United Kingdom	1
United States\|Belgium\|Canada\|Denmark\|France\|Netherlands\|Puerto Rico\|Sweden\|United Kingdom	1
United States\|Belgium\|Canada\|Finland\|Former Serbia and Montenegro\|France\|Germany\|Netherlands\|Romania\|Russian Federation\|United Kingdom	1
United States\|Belgium\|Canada\|France\|Israel\|Italy\|Spain\|United Kingdom	1
United States\|Belgium\|Canada\|France\|Spain\|United Kingdom	1
United States\|Belgium\|Canada\|Hungary\|Israel\|Poland\|Russian Federation	1
United States\|Belgium\|Canada\|Italy\|Netherlands\|Puerto Rico\|Russian Federation\|Spain	1
United States\|Belgium\|Czech Republic\|Hungary\|Italy\|Netherlands\|Poland\|Russian Federation	1
United States\|Belgium\|Denmark\|Finland\|Germany	1
United States\|Belgium\|Denmark\|Hungary\|United Kingdom	1
United States\|Belgium\|Denmark\|Sweden\|United Kingdom	1
United States\|Belgium\|Italy\|Spain	1
United States\|Belgium\|Russian Federation\|United Kingdom	1
United States\|Brazil\|Canada\|Chile\|Croatia\|France\|Peru\|Romania\|Russian Federation	1
United States\|Canada\|China\|Israel	1
United States\|Canada\|Czech Republic\|Hungary\|Romania	1
United States\|Canada\|Czechia\|Finland\|France\|Germany\|Greece\|Poland\|Russian Federation\|Slovakia\|South Africa\|United Kingdom	1
United States\|Canada\|Denmark\|Norway\|Portugal\|Spain\|Sweden\|United Kingdom	1
United States\|Canada\|Finland\|Hungary\|Mexico\|Poland	1
United States\|Canada\|France\|Netherlands\|United Kingdom	1
United States\|Canada\|France\|United Kingdom	1
United States\|Canada\|Germany	1
United States\|Canada\|Germany\|Netherlands\|Spain	1
United States\|Canada\|Germany\|Spain\|Switzerland\|United Kingdom	1
United States\|Canada\|Hong Kong\|Israel\|Singapore\|Switzerland	1
United States\|Canada\|Moldova, Republic of\|Netherlands\|United Kingdom	1
United States\|Canada\|Netherlands\|United Kingdom	1
United States\|Canada\|Sweden	1
United States\|Canada\|United Kingdom	1
United States\|Czech Republic\|Estonia\|Finland\|France\|United Kingdom	1
United States\|Czechia\|France\|Greece\|Italy\|Netherlands\|Romania\|Spain\|United Kingdom	1
United States\|Czechia\|Korea, Republic of\|Lithuania\|Slovakia	1
United States\|Estonia\|Latvia	1
United States\|Finland\|Israel\|Italy\|Norway\|Spain\|Sweden	1
United States\|Finland\|Sweden\|United Kingdom	1
United States\|France	1
United States\|France\|Germany\|Greece\|Netherlands\|Spain\|United Kingdom	1
United States\|France\|Germany\|Spain	1
United States\|France\|Italy	1
United States\|France\|United Kingdom	1
United States\|Germany\|Italy	1
United States\|Germany\|Poland\|Spain	1
United States\|Germany\|United Kingdom	1
United States\|Greece\|Switzerland\|United Kingdom	1
United States\|Hong Kong\|Korea, Republic of\|Netherlands\|Singapore\|Spain\|Taiwan\|United Kingdom	1
United States\|Hungary\|Poland\|Puerto Rico\|Romania\|Russian Federation	1
United States\|Ireland	1
United States\|Italy\|Russian Federation\|Spain	1
United States\|Italy\|United Kingdom	1
United States\|Moldova, Republic of\|South Africa	1
United States\|Netherlands	1
United States\|Portugal	1
United States\|Russian Federation	1
United States\|Singapore	1
United States\|Spain\|Argentina\|Australia\|Austria\|Belgium\|Canada\|Chile\|France\|Germany\|Italy\|Netherlands\|Poland\|South Africa\|United Kingdom	1
United States\|Switzerland\|United Kingdom	1
Venezuela	1
Vietnam	1

Sites per Study

Site_count	Study_Count
1	1533
2	214
3	143
4	89
5	65
6	52
7	41
8	48
9	20
10	24
11	30
12	20
13	20
14	13
15	11
16	29
17	17
18	10
19	13
20	5
21	9
22	6
23	11
24	6
25	6
26	5
27	7
28	8
29	8
30	5
31	4
32	4
34	4
35	4
36	5
37	2
38	2
39	2
40	1
41	4
43	2
44	1
45	3
46	1
47	4
48	1
49	1
50	4
51	1
52	2
54	3
55	4
56	2
57	1
58	2
59	4
60	2
61	2
62	2
63	1
64	2
65	1
66	2
68	1
69	3
70	2
71	3
72	1
73	1
74	2
76	2
78	2
79	1
80	2
82	2
84	2
85	1
86	1
87	1
88	2
89	1
90	1
91	1
94	1
95	1
97	1
98	1
109	1
114	1
118	1
120	1
122	1
123	1
126	1
128	1
130	1
133	1
134	1
135	2
140	3
147	4
149	2
155	1
158	1
159	1
162	1
164	1
165	1
167	1
168	1
170	3
172	3
173	1
176	1
179	1
180	1
184	1
186	2
190	1
192	1
198	1
199	2
203	1
205	2
208	1
209	1
210	1
211	1
215	2
220	1
221	1
226	1
228	1
230	1
233	1
234	2
239	1
240	1
241	2
245	1
249	1
250	1
253	1
254	1
257	1
258	1
261	1
264	1
269	1
273	1
283	1
296	1
299	1
339	1
343	1
364	1
391	1
398	1
405	1
460	1
472	1
508	1
518	1
539	1
554	1
560	1
672	1
873	1
932	1
1328	1

Phase

Phase	Study_Count
Phase 2	904
N/A	734
Phase 1	373
Phase 3	324
Phase 1/Phase 2	214
Phase 4	67
Phase 2/Phase 3	36
Early Phase 1	32

Number of Arms

Number_of_Arms	Count_of_Studies
1	1127
2	944
3	160
4	81
5	17
6	21
7	7
8	7
9	2
10	1
11	1
12	1
18	1
37	1
NA	313

Number of Updates

Count of Versions	Count of Studies
1	122
2	224
3	264
4	209
5	186
6	167
7	135
8	131
9	116
10	97
11	97
12	78
13	89
14	82
15	63
16	66
17	37
18	37
19	29
20	29
21	24
22	32
23	19
24	16
25	18
26	13
27	18
28	18
29	12
30	11
31	14
32	11
33	9
34	5
35	7
36	7
37	8
38	4
39	4
40	10
41	8
42	2
43	6
44	4
45	2
46	5
47	6
48	2
49	4
50	5
51	8
52	5
53	3
54	2
55	4
56	3
57	4
58	3
59	3
60	3
61	2
62	2
63	3
64	2
65	1
66	2
68	3
69	2
70	1
71	1
72	1
74	1
75	3
76	1
77	2
79	2
82	1
87	1
91	2
92	1
93	1
94	1
98	2
101	2
102	2
103	1
104	1
105	2
109	1
110	1
115	1
118	1
122	1
123	1
125	2
131	1
132	1
134	1
137	1
142	1
148	2
156	1
173	1
186	1
197	1
212	1
213	1
225	1
233	1
234	1
245	1
261	1
324	1
351	1
407	1
466	1
471	1
490	1
524	1
544	1
611	1
667	1
879	1
1200	1

Update History Change Type

Change Type	Count_of_Changes	Count_of_Studies	ratio
Study Status	40212	2562	15.695550
Contacts/Locations	19186	2259	8.493139
Recruitment Status	4171	2227	1.872923
Study Design	3609	1828	1.974289
Arms	3504	1384	2.531792
Interventions	3504	1384	2.531792
Eligibility	3261	1405	2.320996
Outcome Measures	2735	1391	1.966211
Study Identification	2689	1305	2.060536
None (earliest Version on record)	2684	2684	1.000000
Study Description	2457	1105	2.223529
Sponsor/Collaborators	2321	1309	1.773109
Oversight	1685	1186	1.420742
Conditions	1292	700	1.845714
References	1135	566	2.005300
More Information	901	302	2.983444
Results	434	434	1.000000
IPDSharing	330	299	1.103679
Baseline Characteristics	185	139	1.330935
Reported Adverse Events	142	122	1.163934
Participant Flow	131	114	1.149123
Results Submission Events	124	124	1.000000
Documents	111	104	1.067308
2020 Study Status	2	2	1.000000
2020 More Information	1	1	1.000000
2020 Outcome Measures	1	1	1.000000
Quality Control Review has not concludedReturned: April 10	1	1	1.000000
Quality Control Review has not concludedReturned: April 27	1	1	1.000000
Quality Control Review has not concludedReturned: March 27	1	1	1.000000
Quality Control Review has not concludedReturned: May 12	1	1	1.000000

Enrollment Metrics by Phase

Measure	Early.Phase.1	N.A	Phase.1	Phase.1.Phase.2	Phase.2	Phase.2.Phase.3	Phase.3	Phase.4
Min.	2.00000	2.0000	1.00000	8.00000	1.0000	36.0	3.0000	10.0000
1st Qu.	15.00000	30.0000	17.50000	25.00000	30.0000	83.0	188.0000	42.2500
Median	28.00000	69.0000	27.00000	44.00000	50.0000	137.0	397.0000	94.5000
Mean	35.15625	616.7975	42.86197	69.06161	205.6609	540.8	801.2984	156.1818
3rd Qu.	50.00000	205.2500	43.00000	80.00000	100.0000	291.5	984.0000	204.5000
Max.	146.00000	100000.0000	1200.00000	1084.00000	99999.0000	12200.0	35533.0000	1618.0000

Trial Group Type

group_type	Group_Count
Experimental	3043
Active Comparator	648
NA	313
Other	211
Placebo Comparator	192
No Intervention	135
Sham Comparator	12

Intervention Model

intervention_model	Study_Count
Single Group Assignment	1335
Parallel Assignment	1047
NA	134
Sequential Assignment	78
Crossover Assignment	58
Factorial Assignment	32

Primary Purpose

primary_purpose	Study_Count
Treatment	1910
Diagnostic	320
Supportive Care	166
Prevention	104
Other	66
Basic Science	31
Screening	31
NA	28
Health Services Research	22
Device Feasibility	4
Educational/Counseling/Training	2

Observational Studies

Studies by Country

Country	Study_Count
United States	197
Canada	39
NA	33
France	22
United Kingdom	20
Germany	12
Italy	10
Spain	10
China	9
Korea, Republic of	8
Netherlands	8
Taiwan	8
Japan	7
Norway	7
Switzerland	7
Denmark	6
Hong Kong	6
Sweden	5
Belgium	3
Brazil	3
Hungary	3
Ireland	3
Israel	3
Russian Federation	3
United States\|Canada	3
Australia	2
Austria	2
Australia\|Belgium\|Denmark\|France\|Germany\|Italy\|Netherlands\|Norway\|Romania\|Turkey\|United Kingdom	1
Austria\|Belgium\|France\|Germany\|Greece\|Italy\|Netherlands\|Poland\|Romania	1
Austria\|Denmark\|Germany	1
Belgium\|Czech Republic\|Germany\|Hungary\|United Kingdom	1
Belgium\|Denmark\|Finland\|France\|Germany\|Greece\|Hungary\|Ireland\|Italy\|Netherlands\|Norway\|Portugal\|Slovakia\|Switzerland\|United Kingdom	1
Belgium\|Luxembourg	1
Brazil\|Algeria\|Argentina\|Australia\|Austria\|Canada\|Colombia\|Egypt\|France\|Germany\|Indonesia\|Israel\|Italy\|Korea, Republic of\|Lebanon\|Mexico\|Netherlands\|New Zealand\|Oman\|Peru\|Philippines\|Saudi Arabia\|Singapore\|Spain\|Taiwan\|Thailand\|United Kingdom	1
Croatia	1
Czech Republic	1
Denmark\|France\|Latvia\|Lithuania\|Netherlands\|Romania\|United Kingdom	1
Denmark\|France\|United Kingdom	1
Finland	1
Finland\|France\|Germany\|Italy\|Netherlands\|Spain\|Sweden\|United Kingdom	1
France\|Austria\|Belgium\|Bulgaria\|Czechia\|Denmark\|Germany\|Greece\|Hungary\|Ireland\|Italy\|Netherlands\|Portugal\|Slovenia\|Spain\|United Kingdom	1
France\|Guadeloupe	1
France\|United States\|Argentina\|Canada\|Chile\|Finland\|Germany\|Greece\|Netherlands\|Spain\|Sweden\|United Kingdom	1
Ghana	1
Greece	1
India	1
Kazakhstan	1
Mexico	1
Poland\|Ukraine	1
Portugal\|Spain	1
Romania	1
Spain\|Austria\|Belgium\|France\|Germany\|Israel\|Luxembourg\|Poland\|Portugal\|Russian Federation\|Slovenia\|Sweden\|Switzerland\|Turkey\|United Kingdom	1
Turkey	1
United States\|Argentina\|Australia\|Brazil\|Canada\|France\|Israel\|Korea, Republic of\|Spain\|Taiwan\|Ukraine\|United Kingdom	1
United States\|Argentina\|Austria\|Belgium\|Canada\|Colombia\|Czechia\|Denmark\|France\|Germany\|Greece\|Israel\|Italy\|Luxembourg\|Mexico\|Netherlands\|Portugal\|Spain\|Sweden\|United Kingdom	1
United States\|Finland	1
United States\|Italy\|Norway	1
United States\|Mexico\|Saudi Arabia	1
United States\|Puerto Rico	1
United States\|Spain	1

Sites per Study

Site_count	Study_Count
1	331
2	25
3	21
4	8
5	8
7	7
8	4
9	4
10	6
11	1
12	1
13	2
14	2
15	2
17	1
18	2
20	3
23	4
24	1
25	1
26	2
27	1
31	1
32	3
33	2
34	1
35	1
36	2
40	1
41	1
44	1
47	2
49	1
50	1
52	1
63	1
72	1
93	1
118	1
135	1
143	2
147	1
148	1
160	1
161	1
182	1
216	1
231	1
267	1
333	1
453	1

Number of Updates

Count of Versions	Count of Studies
1	47
2	73
3	49
4	37
5	36
6	34
7	20
8	26
9	17
10	12
11	15
12	11
13	11
14	11
15	6
16	6
17	7
18	2
19	1
20	2
21	2
22	5
23	3
24	2
25	3
26	1
27	3
28	3
30	1
31	1
32	1
33	2
35	2
38	1
40	1
49	1
50	1
56	1
58	2
63	1
67	1
68	1
69	1
71	1
74	2
80	1
96	1
97	1
102	1
164	1
250	1

Update History Change Type

Change Type	Count_of_Changes	Count_of_Studies	ratio
Study Status	4396	425	10.343529
Contacts/Locations	1594	346	4.606936
Recruitment Status	567	332	1.707831
Study Design	534	306	1.745098
None (earliest Version on record)	472	472	1.000000
Study Description	421	133	3.165414
Eligibility	354	170	2.082353
Sponsor/Collaborators	273	179	1.525140
Study Identification	251	150	1.673333
Outcome Measures	242	164	1.475610
Groups	234	141	1.659574
Interventions	234	141	1.659574
Oversight	174	141	1.234043
Conditions	142	84	1.690476
References	109	72	1.513889
IPDSharing	51	47	1.085106
Results	12	12	1.000000
Documents	7	7	1.000000
More Information	7	7	1.000000
Results Submission Events	7	7	1.000000
Participant Flow	1	1	1.000000

Enrollment Metrics

Measure	Observational
Min	1.000
1st Qu	59.000
Median	198.000
Mean	1200.032
3rd Qu	628.000
Max	96000.000

Observation Model

observational_model	Study_Count
Cohort	271
Case-Only	101
NA	30
Case-Control	28
Other	18
Case Control	12
Ecologic or Community	5
Case-Crossover	3
Defined Population, Natural History	2
Defined Population	1
Family-Based	1

Time Perspective

time_perspective	Study_Count
Prospective	341
Retrospective	80
Cross-Sectional	21
NA	19
Other	8
Longitudinal, Prospective	1
Longitudinal, Retrospective	1
Longitudinal, Retrospective/Prospective	1

Registries

Studies by Country

Country	Study_Count
United States	15
Netherlands	5
France	2
Japan	2
Korea, Republic of	2
Luxembourg	2
NA	2
Argentina	1
Belgium	1
China\|India\|Japan\|Korea, Republic of\|Malaysia\|Singapore\|Taiwan\|Thailand	1
Colombia	1
Hong Kong	1
Ireland	1
Italy	1
Norway	1
Spain	1
Sweden	1
Switzerland	1
United States\|Australia\|Brazil\|Canada\|Ireland\|Spain\|Sweden\|Switzerland\|United Kingdom	1
United States\|Canada\|Lithuania	1

Sites per Study

Site_count	Study_Count
1	26
2	2
3	4
5	1
8	1
10	1
11	1
12	2
25	1
32	1
40	1
76	1
77	1

Number of Updates

Count of Versions	Count of Studies
1	6
2	8
3	9
4	3
5	2
6	4
7	2
8	1
10	2
13	1
16	1
22	1
26	1
33	1
50	1

Update History Change Type

Change Type	Count_of_Changes	Count_of_Studies	ratio
Study Status	254	37	6.864865
Contacts/Locations	134	32	4.187500
None (earliest Version on record)	43	43	1.000000
Recruitment Status	39	29	1.344828
Study Design	26	20	1.300000
Eligibility	11	9	1.222222
Groups	9	7	1.285714
Interventions	9	7	1.285714
Outcome Measures	9	7	1.285714
References	8	6	1.333333
Study Identification	8	6	1.333333
Oversight	7	6	1.166667
Study Description	7	6	1.166667
Sponsor/Collaborators	6	3	2.000000
Conditions	2	2	1.000000
IPDSharing	2	2	1.000000

Enrollment Metrics

Measure	Registries
Min	39.000
1st Qu	237.000
Median	693.000
Mean	2190.442
3rd Qu	2000.000
Max	15000.000

Registry Model

observational_model	Study_Count
Cohort	37
Case-Control	3
Case-Only	3

Time Perspective

time_perspective	Study_Count
Prospective	38
Other	4
Cross-Sectional	1

Follow-up

target_duration	Study_Count
10 Years	8
3 Years	7
5 Years	7
1 Year	4
36 Months	3
1 Month	2
2 Years	2
3 Months	2
6 Months	2
11 Years	1
15 Years	1
24 Months	1
4 Months	1
7 Days	1
8 Years	1

intervention_type	Study_Count
Drug	1045
Radiation	193
Procedure	155
Behavioral	126
Other	124
Drug\|placebo	122
Device	119
Biological	102
Drug\|Radiation	79
Drug\|Other	63
Drug\|Procedure	63
Biological\|Drug	56
Diagnostic Test	38
Dietary Supplement	28
Dietary Supplement\|placebo	22
Other\|Procedure	18
Drug\|Procedure\|Radiation	16
Procedure\|Radiation	15
Behavioral\|Other	14
Device\|Drug	14
Device\|Procedure	14
Drug\|Other\|Procedure	14
Other\|Procedure\|Radiation	14
Other\|Radiation	14
Drug\|Other\|Radiation	13
Biological\|Drug\|Other	11
Dietary Supplement\|Drug	10
Biological\|Other	9
Biological\|placebo	9
Drug\|Other\|placebo	8
Biological\|Drug\|placebo	6
Device\|Other	6
Behavioral\|Drug	5
Behavioral\|Radiation	5
Biological\|Drug\|Procedure	5
Biological\|Procedure	5
Biological\|Radiation	5
Diagnostic Test\|Drug	5
Dietary Supplement\|Other	5
Drug\|placebo\|Radiation	5
Genetic	5
Biological\|Other\|Procedure	4
Device\|Radiation	4
Dietary Supplement\|Other\|Procedure	4
Behavioral\|Dietary Supplement\|Other	3
Behavioral\|Other\|Procedure	3
Biological\|Drug\|Radiation	3
Combination Product	3
Combination Product\|Drug	3
Dietary Supplement\|Drug\|placebo	3
Dietary Supplement\|Procedure	3
Drug\|Other\|placebo\|Procedure	3
Behavioral\|Drug\|Other\|placebo	2
Behavioral\|Procedure	2
Biological\|Device	2
Biological\|Device\|Other\|Procedure	2
Biological\|Drug\|Genetic\|Other	2
Biological\|Drug\|Other\|placebo	2
Biological\|Drug\|Other\|Procedure	2
Device\|Other\|Procedure	2
Dietary Supplement\|Drug\|Other\|placebo	2
Dietary Supplement\|Drug\|Radiation	2
Drug\|Genetic\|Other	2
Drug\|Other\|Procedure\|Radiation	2
Behavioral\|Device	1
Behavioral\|Device\|Other\|Procedure\|Radiation	1
Behavioral\|Dietary Supplement\|Drug\|Other\|Procedure	1
Behavioral\|Dietary Supplement\|Other\|placebo	1
Behavioral\|Dietary Supplement\|Other\|Procedure	1
Behavioral\|Dietary Supplement\|Procedure	1
Behavioral\|Genetic	1
Behavioral\|Genetic\|Other\|Procedure	1
Behavioral\|Other\|Procedure\|Radiation	1
Behavioral\|placebo	1
Biological\|Device\|Drug	1
Biological\|Device\|Drug\|Procedure	1
Biological\|Drug\|placebo\|Procedure	1
Biological\|Other\|placebo	1
Biological\|Other\|Radiation	1
Combination Product\|Procedure	1
Combination Product\|Radiation	1
Device\|Diagnostic Test\|Other	1
Device\|Diagnostic Test\|Other\|Procedure	1
Device\|Drug\|Other	1
Device\|Drug\|Procedure	1
Device\|Drug\|Radiation	1
Device\|Procedure\|Radiation	1
Diagnostic Test\|Drug\|Other\|Procedure	1
Diagnostic Test\|Other	1
Diagnostic Test\|Other\|placebo	1
Diagnostic Test\|Other\|Procedure	1
Diagnostic Test\|Radiation	1
Dietary Supplement\|Drug\|Other\|placebo\|Procedure	1
Dietary Supplement\|Drug\|Other\|Procedure	1
Dietary Supplement\|Drug\|Procedure	1
Dietary Supplement\|Other\|placebo\|Procedure	1
Dietary Supplement\|placebo\|Procedure	1
Dietary Supplement\|Radiation	1
Drug\|Genetic\|Other\|Procedure	1
Drug\|Genetic\|Procedure	1
Drug\|Genetic\|Radiation	1
Drug\|placebo\|Procedure	1
Genetic\|Other\|Procedure	1

Site_count	Study_Count
1	331
2	25
3	21
4	8
5	8
7	7
8	4
9	4
10	6
11	1
12	1
13	2
14	2
15	2
17	1
18	2
20	3
23	4
24	1
25	1
26	2
27	1
31	1
32	3
33	2
34	1
35	1
36	2
40	1
41	1
44	1
47	2
49	1
50	1
52	1
63	1
72	1
93	1
118	1
135	1
143	2
147	1
148	1
160	1
161	1
182	1
216	1
231	1
267	1
333	1
453	1

Count of Versions	Count of Studies
1	47
2	73
3	49
4	37
5	36
6	34
7	20
8	26
9	17
10	12
11	15
12	11
13	11
14	11
15	6
16	6
17	7
18	2
19	1
20	2
21	2
22	5
23	3
24	2
25	3
26	1
27	3
28	3
30	1
31	1
32	1
33	2
35	2
38	1
40	1
49	1
50	1
56	1
58	2
63	1
67	1
68	1
69	1
71	1
74	2
80	1
96	1
97	1
102	1
164	1
250	1

Site_count	Study_Count
1	331
2	25
3	21
4	8
5	8
7	7
8	4
9	4
10	6
11	1
12	1
13	2
14	2
15	2
17	1
18	2
20	3
23	4
24	1
25	1
26	2
27	1
31	1
32	3
33	2
34	1
35	1
36	2
40	1
41	1
44	1
47	2
49	1
50	1
52	1
63	1
72	1
93	1
118	1
135	1
143	2
147	1
148	1
160	1
161	1
182	1
216	1
231	1
267	1
333	1
453	1

Count of Versions	Count of Studies
1	47
2	73
3	49
4	37
5	36
6	34
7	20
8	26
9	17
10	12
11	15
12	11
13	11
14	11
15	6
16	6
17	7
18	2
19	1
20	2
21	2
22	5
23	3
24	2
25	3
26	1
27	3
28	3
30	1
31	1
32	1
33	2
35	2
38	1
40	1
49	1
50	1
56	1
58	2
63	1
67	1
68	1
69	1
71	1
74	2
80	1
96	1
97	1
102	1
164	1
250	1

prostatic neoplasms

Study Counts

Studies over Time

Interventional Trials

Intervention Type

Count of Studies by Intervention (normalized and mapped)

Interventions over Time

Studies by Country

Sites per Study

Phase

Number of Arms

Number of Updates

Update History Change Type

Enrollment Metrics by Phase

Trial Group Type

Intervention Model

Primary Purpose

Observational Studies

Studies by Country

Sites per Study

Number of Updates

Update History Change Type

Enrollment Metrics

Observation Model

Time Perspective

Registries

Studies by Country

Sites per Study

Number of Updates

Update History Change Type

Enrollment Metrics

Registry Model

Time Perspective

Follow-up

Site_count	Study_Count
1	331
2	25
3	21
4	8
5	8
7	7
8	4
9	4
10	6
11	1
12	1
13	2
14	2
15	2
17	1
18	2
20	3
23	4
24	1
25	1
26	2
27	1
31	1
32	3
33	2
34	1
35	1
36	2
40	1
41	1
44	1
47	2
49	1
50	1
52	1
63	1
72	1
93	1
118	1
135	1
143	2
147	1
148	1
160	1
161	1
182	1
216	1
231	1
267	1
333	1
453	1

Count of Versions	Count of Studies
1	47
2	73
3	49
4	37
5	36
6	34
7	20
8	26
9	17
10	12
11	15
12	11
13	11
14	11
15	6
16	6
17	7
18	2
19	1
20	2
21	2
22	5
23	3
24	2
25	3
26	1
27	3
28	3
30	1
31	1
32	1
33	2
35	2
38	1
40	1
49	1
50	1
56	1
58	2
63	1
67	1
68	1
69	1
71	1
74	2
80	1
96	1
97	1
102	1
164	1
250	1